why not simply put whatever it is into the httpsession, and then write
a getter in wicket's session that retrieves it from there? seems
simpler.
-igor
On Sat, Jan 9, 2010 at 4:07 AM, smallufo <small...@gmail.com> wrote:
> 2010/1/9 smallufo <small...@gmail.com>
>
>> Hi all :
>>
>> I'm trying to inject something to the Wicket Session by a Generic Servlet
>> Filter :
>>
>> public class UserFilter implements Filter
>> {
>> private UserDao UserDao;
>>
>> @Override
>> public void init(FilterConfig config) throws ServletException
>> {
>> WebApplicationContext wac =
>> WebApplicationContextUtils.getWebApplicationContext(config.getServletContext());
>> UserDao = (UserDao) wac.getBean("userDao");
>> }
>>
>> @Override
>> public void doFilter(ServletRequest req, ServletResponse res, FilterChain
>> chain) throws IOException, ServletException
>> {
>>
>> System.out.println(getClass().getName() + " : UserDao = " + UserDao);
>> // ... blah...
>> // do something , get user from cookie , authenticate cookie , and set
>> it to Session
>> // ... blah...
>> MySession s = MySession.get(); // error occurs !
>> chain.doFilter(req, res);
>> }
>>
>>
>> It seems I cannot get Wicket's session outside wicket's request cycle.
>> I searched and found WicketSessionFilter , but it seems it is for
>> "Retrieving" objects from wicket's session , not for Filter to inject
>> something to wicket's session...
>>
>>
>>
> I've almost solve this problem by looking into
> org.apache.wicket.protocol.http.servlet.WicketSessionFilter , and
> implements my Filter :
>
>
> public class UserFilter implements Filter
> {
> private String sessionKey;
> private UserDao userDao;
>
> �...@override
> public void init(FilterConfig config) throws ServletException
> {
> WebApplicationContext wac =
> WebApplicationContextUtils.getWebApplicationContext(config.getServletContext());
> userDao = (UserDao) wac.getBean("userDao");
> }
>
> �...@override
> public void doFilter(ServletRequest req, ServletResponse res, FilterChain
> chain) throws IOException, ServletException
> {
> HttpServletRequest httpServletRequest = ((HttpServletRequest)req);
> // create a httpSession if there is no session
> HttpSession httpSession = httpServletRequest.getSession(true);
> WebApplication application = (WebApplication)Application.get("MyApp");
>
> if (application != null)
> {
> sessionKey = application.getSessionAttributePrefix(null, "MyApp") +
> Session.SESSION_ATTRIBUTE_NAME;
>
> //MySession extends WebSession
> MySession mySession = (MySession)httpSession.getAttribute(sessionKey);
>
> if (mySession != null)
> mySession.setUser(getUserFromCookies(httpServletRequest));
> else
> {
> //No mySession , need to create a MySession and inject to
> httpSession
>
> MySession newSession = new MySession(application , ????????????); //
> <----------------- How to get Request ?
> newSession.setUser(getUserFromCookies(httpServletRequest));
> httpSession.setAttribute(sessionKey, newSession);
> }
> }
> chain.doFilter(req, res);
> }
> }
>
>
> The problem is : when there is no Wicket's session , how do I create a
> Wicket's session outside wicket's request cycle ?
> WebSession needs a "org.apache.wicket.Request" to construct , how do I get
> this Request in the filter ?
>
> Thanks a lot.
>
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